US20210194637A1 - Method for determining harq-ack codebook, terminal device and network device - Google Patents

Method for determining harq-ack codebook, terminal device and network device Download PDF

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Publication number
US20210194637A1
US20210194637A1 US17/198,002 US202117198002A US2021194637A1 US 20210194637 A1 US20210194637 A1 US 20210194637A1 US 202117198002 A US202117198002 A US 202117198002A US 2021194637 A1 US2021194637 A1 US 2021194637A1
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Prior art keywords
harq
ack
information
pdsch
terminal device
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Yanan Lin
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H04W72/0413—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the embodiments of the present application relate to the field of communications, and more specifically, to a method for determining a HARQ-ACK codebook, a terminal device and a network device.
  • NR New Radio
  • NR New Radio
  • HARQ-ACK Hybrid Automatic Repeat request Acknowledgement
  • a method for determining a HARQ-ACK codebook includes:
  • a terminal device receiving, by a terminal device, a first PDSCH sent by a network device, where the first PDSCH is a PDSCH in a first time window and corresponds to first HARQ-ACK information;
  • the terminal device determining, by the terminal device, a HARQ-ACK codebook corresponding to the first time window, where the HARQ-ACK codebook includes the first HARQ-ACK information.
  • the first time window is a HARQ-ACK feedback window
  • the terminal device uses a dynamic codebook for feedback.
  • a method for determining a HARQ-ACK codebook includes:
  • a terminal device which is configured to perform the method in the above first aspect or the implementations thereof.
  • the terminal device includes a functional module configured to perform the method in the above first aspect or the implementations thereof.
  • a network device configured to perform the method in the second aspect or the implementations thereof.
  • the network device includes a functional module configured to perform the method in the above second aspect or the implementations thereof.
  • a terminal device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is configured to call and run the computer program stored in the memory to perform the method in the above-mentioned first aspect or the implementations thereof.
  • a network device including a processor and a memory.
  • the memory is used for storing a computer program
  • the processor is configured to call and run the computer program stored in the memory to perform the method in the above-mentioned second aspect or the implementations thereof.
  • a chip which is used to carry out the method in any one of the above first to second aspects or the implementations thereof.
  • the chip includes a processor configured to call and run a computer program from a memory, to cause a device installed with the chip to perform the method in any one of the above first to the second aspects or the implementations thereof.
  • a computer-readable storage medium for storing a computer program that causes a computer to perform the method in any one of the above first to second aspects or the implementations thereof.
  • a computer program product including computer program instructions that cause a computer to perform the method in any one of the above first to second aspects or the implementations thereof.
  • a computer program which, when running on a computer, causes the computer to perform the method in any one of the above first to second aspects or the implementations thereof.
  • FIG. 1 is a schematic diagram of a communication system architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a HARQ-ACK feedback window in a single carrier scenario according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a HARQ-ACK feedback window in a multiple carrier scenario according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a HARQ-ACK feedback window according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a method for determining a HARQ-ACK codebook according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another HARQ-ACK feedback window according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another method for determining a HARQ-ACK codebook according to an embodiment of the present application.
  • FIG. 8 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 9 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a chip according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a communication system according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced long term evolution
  • NR New Radio
  • UMTS Universal Mobile Telecommunication System
  • WLAN Wireless Local Area Networks
  • Wi-Fi Wireless Fidelity
  • D2D Device to Device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • the communication system in the embodiments of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) deployment scenario.
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • the frequency spectrum applied in the embodiments of the present application is not limited.
  • the embodiments of this application can be applied to either licensed spectrum or unlicensed spectrum.
  • the communication system 100 may include a network device 110 which may be a device that communicates with a terminal device 120 (or referred to as a communication terminal or a terminal).
  • the network device 110 can provide communication coverage for a specific geographic area, and can communicate with terminal devices located in the coverage area.
  • FIG. 1 exemplarily shows one network device and two terminal devices.
  • the communication system 100 may include multiple network devices and other numbers of terminal devices can be included in the coverage of each network device, which is not particularly limited in the embodiments of the present disclosure.
  • the communication system 100 may also include other network entities such as a network controller and a mobility management entity, which are not limited in the embodiments of the present application.
  • network entities such as a network controller and a mobility management entity, which are not limited in the embodiments of the present application.
  • the communication device may include a network device 110 and a terminal device 120 which have the communication function.
  • the network device 110 and the terminal device 120 may be the specific devices as described above, which will not be repeated here.
  • the communication device may also include other devices in the communication system 100 , such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present disclosure.
  • the terminal device may also be referred to as user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile site, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device.
  • UE user equipment
  • the terminal device can be a station (ST) in a WLAN, which may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, and a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and terminal devices next-generation communication systems, such as terminal devices in the NR network or terminal devices in the future evolution of the Public Land Mobile Network (PLMN) network.
  • ST station
  • WLAN which may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, and a Personal Digital Assistant (PDA) device, a handheld device with a wireless communication function, a computing device or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, and terminal devices next-generation communication systems, such as terminal devices in the
  • the terminal device may also be a wearable device.
  • the wearable device can also be referred to as a wearable smart device, which is a general term for wearable devices which are designed and developed by using wearable technology to intelligently design and develop everyday wear, such as glasses, gloves, watches, clothing and shoes.
  • the wearable device is a portable device that is directly worn on the body or integrated into user's clothes or accessories.
  • the wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • the wearable smart device includes full-featured and large-sized devices of which complete or partial functions can be achieved without relying on smart phones, such as smart watches or smart glasses, and devices which focus on only a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device can be a device used to communicate with a mobile device.
  • the network device can be an access point (AP) in WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, or a NodeB (NB) in WCDMA, and can also be an Evolutional Node B (eNB or eNodeB) in LTE, a relay station, an access point, a vehicle-mounted device, a wearable device, a network device (gNB) in a NR network, a network device in future evolutional PLMN network, or the like.
  • AP access point
  • BTS Base Transceiver Station
  • NB NodeB
  • gNB network device
  • gNB network device in future evolutional PLMN network
  • the network device provides services for a cell
  • the terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a cell corresponding to the network device (e.g., a cell corresponding to the base station), or belong to a macro base station or a base station corresponding to a small cell.
  • the small cell herein can include a Metro cell, a Micro cell, a Pico cell, a Femto cell, etc., which are characterized in small coverage and low transmission power, and are suitable for providing high-rate data transmission services.
  • the terminal device uses a dynamic codebook for HARQ-ACK feedback, and there can be specifically two cases:
  • Case 1 a single carrier scenario.
  • a network device sends a PDSCH to a terminal device, it will send counter DAI information to the terminal device at the same time.
  • the counter DAI information is sent to the terminal device through a PDCCH and is used for the terminal device to determine the HARQ feedback codebook, that is, the counter DAI indicates a serial number of the PDSCH scheduled by the current PDCCH in the HARQ feedback window, where the PDSCHs are sequentially ordered according to the PDCCH monitoring opportunity.
  • a modulo method can be used for the counter.
  • the number of bits of the counter DAI is 2 bits, the value of the counter DAI mods 4; if the number of bits of the counter DAI is 3 bits, the value of the counter DAI mods 8.
  • the network device schedules the terminal device to receive the PDSCH at a first, third, fourth, fifth, and seventh PDCCH detection opportunities of the 8 PDCCH detection opportunities. Assuming that the number of bits of the counter DAI is 2 bits, correspondingly, the counter DAIS corresponding to the PDSCHs on these 5 slots are 00, 01, 10, 11 and 00, respectively.
  • CBG code block group
  • the terminal device can determine that the codebook size in the HARQ-ACK feedback window is 10 bits, as shown in Table 1 below:
  • the terminal device When the terminal device receives only partial PDSCHs of the five PDSCHs, for example, the terminal device does not receive a PDSCH with a counter DAI of 01, in this case, after receiving a PDSCH with a counter DAI of 00, the terminal device receives a PDSCH with a counter DAI of 10, at this time, the terminal device can determine that it has lost the PDSCH with a counter DAI of 01 and thus will fill in the corresponding position with a negative acknowledgement (NACK), as shown in Table 2 below:
  • NACK negative acknowledgement
  • the HARQ-ACK feedback information corresponding to codeword 1 is NACK.
  • Case 2 a multi-carrier scenario.
  • a network device sends a PDSCH to a terminal device, it will simultaneously send two DAI messages, a counter DAI and a total DAI, to the terminal device.
  • the two DAI messages are sent to the terminal device through the PDCCH and are used for the terminal device to determine the HARQ feedback codebook, where the counter DAI is used to indicate a serial number of the PDSCH scheduled by the current PDCCH in the HARQ feedback window, and the total DAI is used to inform the terminal device how many HARQ-ACKs there are in the HARQ feedback window so far.
  • the PDSCHs are sequentially ordered according to the PDCCH detection opportunities, specifically, they may be ordered first in the frequency domain and then in the time domain.
  • a modulo method can be used for the counter. For example, if the number of bits in the counter DAI (or the total DAI) is 2 bits, the value of the counter DAI (or the total DAI) mods 4; if the number of bits in the counter DAI (or the total DAI) is 3 bits, the value of the counter DAI (or the total DAI) mods 8.
  • the terminal device is configured with 2 carriers, a total of 8 slots are included in the HARQ-ACK feedback window, and each slot of each carrier is configured with a PDCCH monitoring opportunity, then the order of the PDCCH detection opportunities is: a first slot of carrier #1, a first slot of carrier #2, a second slot of carrier #1, a second slot of carrier #2, . . . , an eighth slot of carrier #1, and an eighth slot of carrier #2.
  • the network device schedules the terminal device to receive the PDSCH on the first, second, sixth, seventh, eighth, ninth, thirteenth, and fourteenth slots of the 16 PDCCH detection opportunities, assuming that the number of bits of the counter DAI and the total DAI bits is 2 bits, respectively, correspondingly, the counter DAI and total DAI corresponding to the PDSCHs on the 8 slots are shown in FIG. 3 .
  • the terminal device can determine the codebook in the HARQ-ACK feedback window as shown in Table 3 below:
  • the PDSCH scheduled by the PDCCH may be in the same slot as the PDCCH, or may not be in the same slot as the PDCCH, which is not limited in the embodiments of the present application.
  • the HARQ-ACK feedback window can be determined after the network device has preempted the channel, and is a dynamic feedback window.
  • a start position of the HARQ-ACK feedback window is a starting position of a COT.
  • the counter DAI in the first PDCCH monitoring opportunity in the HARQ-ACK feedback window is not “00”.
  • the starting position of the HARQ-ACK feedback window may be indicated on subsequent time-frequency resources, and thus in subsequent indication, there may also be a case where the counter DAI information in the first PDCCH monitoring opportunity in the window is not “00”. When such cases occur, it needs to make corresponding specifications so that the network device and the terminal device have the same cognition of the HARQ-ACK codebook.
  • FIG. 5 is a schematic flowchart of a method 200 for determining a HARQ-ACK codebook according to an embodiment of the present application. As shown in FIG. 5 , the method 200 may include the following:
  • the first time window is a HARQ-ACK feedback window.
  • the HARQ-ACK codebook is a dynamic codebook. Specifically, it can be a dynamic codebook in a single-carrier scenario, or a dynamic codebook in a multi-carrier scenario.
  • the first PDSCH is a PDSCH corresponding to a Nth PDCCH monitoring opportunity indication within the first time window
  • a counter DAI corresponding to the first PDSCH is M
  • N and M are positive integers
  • N ⁇ M are positive integers
  • the first PDSCH is a PDSCH corresponding to the Nth PDCCH monitoring opportunity indication, but the counter DAI corresponding to the first PDSCH is M, that is, there is an inconsistency.
  • the terminal device determines a Nth group of HARQ-ACK information in the HARQ-ACK codebook as the first HARQ-ACK information, where each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the terminal device determines that the first group to the (N ⁇ 1)th group of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the placeholder information is not information with specific meanings such as NACK information, and the position corresponding to the placeholder information cannot normally store the codebook. For example, it can be understood as being left blank, that is, it is not used to store the codebook information.
  • the first to (N ⁇ 1)th groups of HARQ-ACK information are the placeholder information
  • the first to (N ⁇ 1)th groups in the HARQ-ACK codebook are left blank and no information is stored therein.
  • the terminal device determines an Mth group of HARQ-ACK information in the HARQ-ACK codebook as the first HARQ-ACK information, where each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the terminal device determines that the first group to the (M ⁇ 1)th group of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the terminal device receives first indication information sent by the network device, and the first indication information is used to determine at least one of the following information:
  • a start position of the first time window a start position of the first time window, an end position of the first time window, a length of the first time window, a time domain position of resources for transmitting the HARQ-ACK codebook, a frequency domain position of the resources for transmitting the HARQ-ACK codebook, and a number of resources for transmitting the HARQ-ACK codebook.
  • the terminal device determines the first time window according to the first indication information.
  • the terminal device determines the time domain position of the resources for transmitting the HARQ-ACK codebook according to the first indication information.
  • the terminal device determines the time domain position of the resources for transmitting the HARQ-ACK codebook according to HARQ-ACK feedback timing indication information and the first indication information, where the HARQ-ACK feedback timing indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH in the first time window.
  • the end position of a last symbol of the first PDSCH is on slot n
  • the HARQ-ACK feedback timing indication information is 5
  • the time domain position of the resources for transmitting the HARQ-ACK codebook indicated by the first indication information is 2. Then the time domain position of the resources actually transmitting the HARQ-ACK codebook is on the slot n+7.
  • the HARQ-ACK corresponding to the PDSCH corresponding to the Nth PDCCH monitoring opportunity is the Mth group of HARQ-ACK feedback in the HARQ-ACK codebook.
  • the HARQ-ACK feedback window includes a total of 8 slots, and each slot is configured with a PDCCH monitoring opportunity.
  • the HARQ-ACK corresponding to the PDSCH corresponding to the Nth PDCCH monitoring opportunity is the Nth group of HARQ-ACK feedback in the HARQ-ACK codebook.
  • the HARQ feedback window includes a total of 8 slots, and each slot is configured with a PDCCH monitoring opportunity.
  • the foregoing embodiments are illustrated only in the examples where the HARQ-ACK codebook is a dynamic codebook in a single carrier scenario, and the foregoing embodiments are also applicable when the HARQ-ACK codebook is a dynamic codebook in a multi-carrier scenario.
  • the terminal device uses the dynamic codebook for the feedback, if the PDSCH position corresponding to PDCCH monitoring opportunity in the HARQ-ACK feedback window is inconsistent with the counter DAI corresponding to the PDSCH, the starting point for the codebook determination is based on the PDSCH position, or the starting point for the codebook determination is based on the counter DAI, so that the terminal device and the network device may have the same recognition of the codebook determination.
  • FIG. 7 is a schematic flowchart of a method 300 for determining a HARQ-ACK codebook according to an embodiment of the present application. As shown in FIG. 7 , the method 300 may include the following:
  • the first PDSCH is a PDSCH corresponding to a Nth PDCCH monitoring opportunity indication within the first time window
  • a counter DAI corresponding to the first PDSCH is M
  • N and M are positive integers
  • N ⁇ M are positive integers
  • the network device determines an Nth group of HARQ-ACK information in the HARQ-ACK codebook as the first HARQ-ACK information, where each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the terminal device determines that a first to (N ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the network device determines an Mth group of HARQ-ACK information in the HARQ-ACK codebook as the first HARQ-ACK information, where each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the terminal device determines that a first to (M ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the network device sends first indication information to the terminal device, and the first indication information is used to determine at least one of the following information:
  • a start position of the first time window a start position of the first time window, an end position of the first time window, a length of the first time window, a time domain position of resources for transmitting the HARQ-ACK codebook, a frequency domain position of the resources for transmitting the HARQ-ACK codebook, and a number of resources for transmitting the HARQ-ACK codebook.
  • the network device sends HARQ-ACK feedback timing indication information to the terminal device, where the HARQ-ACK feedback timing indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH in the first time window, and is used to determine the time domain position of the resources for transmitting the HARQ-ACK codebook.
  • the HARQ-ACK feedback timing indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH in the first time window, and is used to determine the time domain position of the resources for transmitting the HARQ-ACK codebook.
  • the terminal device uses the dynamic codebook for the feedback, if the PDSCH position corresponding to PDCCH monitoring opportunity indication in the feedback window is inconsistent with the counter DAI corresponding to the PDSCH, the starting point for the codebook determination is based on the PDSCH position, or the starting point for the codebook determination is based on the Counter DAI, so that the terminal device and the network device may have the same recognition of the codebook determination.
  • FIG. 8 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 8 , the terminal device 400 includes:
  • a communication unit 410 configured to receive a first PDSCH sent by a network device, where the first PDSCH is a PDSCH in a first time window and corresponds to first HARQ-ACK information;
  • a processing unit 420 configured to determine a HARQ-ACK codebook corresponding to the first time window, where the HARQ-ACK codebook includes the first HARQ-ACK information.
  • the first PDSCH is a PDSCH corresponding to a Nth PDCCH monitoring opportunity indication in the first time window
  • a counter DAI corresponding to the first PDSCH is M
  • N and M are positive integers
  • N ⁇ M are positive integers
  • processing unit 420 is specifically configured to:
  • each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the processing unit 420 is further configured to determine that a first to (N ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • processing unit 420 is specifically configured to:
  • each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the processing unit 420 is further configured to determine that a first to (M ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the communication unit 410 is further configured to receive first indication information sent by the network device, where the first indication information is used to determine at least one of the following information:
  • a start position of the first time window a start position of the first time window, an end position of the first time window, a length of the first time window, a time domain position of resources for transmitting the HARQ-ACK codebook, a frequency domain position of the resources for transmitting the HARQ-ACK codebook, and a number of the resources for transmitting the HARQ-ACK codebook.
  • the processing unit 420 is further configured to determine the first time window according to the first indication information.
  • the processing unit 420 is further configured to determine the time domain position of the resources for transmitting the HARQ-ACK codebook according to the first indication information.
  • processing unit 420 is specifically configured to:
  • the HARQ-ACK feedback time indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH within the first time window.
  • terminal device 400 can correspond to the terminal device in the method embodiments of the present application, and the above-mentioned and other operations and/or functions of the units in the terminal device 400 are used to implement the process for the terminal device in method 200 as shown in FIG. 5 , which will not be repeated here for the sake of brevity.
  • FIG. 9 is a schematic block diagram of a network device 500 according to an embodiment of the present application. As shown in FIG. 9 , the network device 500 includes:
  • a communication unit 510 configured to send a first PDSCH to a terminal device within a first time window, where the first PDSCH corresponds to first HARQ-ACK information
  • a processing unit 520 configured to determine a HARQ-ACK codebook corresponding to the first time window, where the HARQ-ACK codebook includes the first HARQ-ACK information.
  • the first PDSCH is a PDSCH corresponding to a Nth PDCCH monitoring opportunity indication in the first time window
  • a counter DAI corresponding to the first PDSCH is M
  • N and M are positive integers
  • N ⁇ M are positive integers
  • processing unit 520 is specifically configured to:
  • each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the processing unit 420 is further configured to determine that a first to (N ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • processing unit 520 is specifically configured to:
  • each group of HARQ-ACK information includes a number of K HARQ-ACK bits, and K is a positive integer greater than or equal to 1.
  • the processing unit 420 is further configured to determine that a first to (M ⁇ 1)th groups of HARQ-ACK information in the HARQ-ACK codebook are NACK information or placeholder information.
  • the communication unit 510 is further configured to send first indication information to the terminal device, where the first indication information is used to determine at least one of the following information:
  • a start position of the first time window a start position of the first time window, an end position of the first time window, a length of the first time window, a time domain position of resources for transmitting the HARQ-ACK codebook, a frequency domain position of the resources for transmitting the HARQ-ACK codebook, and a number of the resources for transmitting the HARQ-ACK codebook.
  • the communication unit 510 is further configured to send HARQ-ACK feedback timing indication information to the terminal device, where the HARQ-ACK feedback timing indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH in the first time window and is used to determine the time domain position of the resources for transmitting the HARQ-ACK codebook.
  • the HARQ-ACK feedback timing indication information is HARQ-ACK feedback timing indication information corresponding to a first PDSCH or a last PDSCH in the first time window and is used to determine the time domain position of the resources for transmitting the HARQ-ACK codebook.
  • the network device 500 can correspond to the network device in the method embodiments of the present application, and the above-mentioned and other operations and/or functions of the units in the network device 500 are used to implement the corresponding process of the network device in the method 300 of FIG. 7 , which will not be repeated here for the sake of brevity.
  • FIG. 10 is a schematic structural diagram of a communication device 600 according to an embodiment of the present application.
  • the communication device 600 shown in FIG. 10 includes a processor 610 .
  • the processor 610 can call and execute a computer program from a memory to carry out the methods in the embodiments of the present application.
  • the communication device 600 can further include a memory 620 .
  • the processor 610 can invoke and run the computer program from the memory 620 to carry out the methods in the embodiments of the present application.
  • the memory 620 can be a separate device independent of the processor 610 , or can be integrated in the processor 610 .
  • the communication device can further include a transceiver 630 , and the processor 610 can control the transceiver 630 to communicate with other devices, and specifically to transmit information or data to other devices, or to receive information or data transmitted from other devices.
  • the transceiver 630 can include a transmitter and a receiver.
  • the transceiver 630 can further include one or more antennas.
  • the communication device 600 can specifically be the network device in the embodiments of the present application, and the communication device 600 can carry out the corresponding processes which are implemented by the network device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the communication device 600 can specifically be the mobile terminal/terminal device in the embodiments of the application, and the communication device 600 can implement the corresponding processes which are implemented by the mobile terminal/terminal device in the methods according to the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • FIG. 11 is a schematic structural diagram of a chip according to an embodiment of the present application.
  • the chip 700 shown in FIG. 11 includes a processor 710 which can invoke and run a computer program from a memory to implement the methods in the embodiments of the present application.
  • the chip 700 can further include a memory 720 .
  • the processor 710 can invoke and run the computer program from the memory 720 to carry out the methods in the embodiments of the present application.
  • the memory 720 can be a separate device independent of the processor 710 , or can be integrated in the processor 710 .
  • the chip 700 can further include an input interface 730 .
  • the processor 710 can control the input interface 730 to communicate with other devices or chips, and particularly to obtain information or data transmitted by other devices or chips.
  • the chip 700 can further include an output interface 740 .
  • the processor 710 can control the output interface 740 to communicate with other devices or chips, and particularly to output information or data to other devices or chips.
  • the chip can be applied to the network device in the embodiments of the present application, and the chip can carry out the corresponding processes which are implemented by the network device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processed which are implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the chip mentioned in the embodiments of the present application can also be referred to as a system-level chip, a system chip, a chip system, or a system-on-chip.
  • FIG. 12 is a schematic block diagram of a communication system 800 according to an embodiment of the present application. As shown in FIG. 12 , the communication system 800 includes a terminal device 810 and a network device 820 .
  • the terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above methods
  • the network device 820 can be used to implement the corresponding functions implemented by the network device in the above methods, which will not be repeated here for the sake of brevity.
  • the processor can be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be performed by an integrated logic circuit of hardware in the processor or by instructions in a form of software.
  • the foregoing processor can be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), another programmable logic device, discrete gate or transistor logic device, or a discrete hardware component, which can implement the methods, steps, and logical blocks disclosed in the embodiments of the present disclosure.
  • the general-purpose processor can be a microprocessor, any conventional processor or the like.
  • the steps of the methods disclosed in connection with the embodiments of the present disclosure can be directly embodied in and performed by a hardware decoding processor, or can be implemented by a combination of hardware and software modules in the decoding processor.
  • the software modules can be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory or a register.
  • the storage medium is located in the memory, and the processor reads information in the memory and implements the steps of the above methods in combination with the hardware thereof.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both the volatile and non-volatile memories.
  • the non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an erasable PROM (EPROM), an electrically EPROM (EEPROM) or a flash memory.
  • the volatile memory may be a Random Access Memory (RAM), which is used as an external cache.
  • RAMs such as a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synchlink DRAM (SLDRAM)) and a Direct Rambus RAM (DR RAM).
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced SDRAM
  • SLDRAM Synchlink DRAM
  • DR RAM Direct Rambus RAM
  • the memory in the embodiments of the present disclosure can also be a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch-Link DRAM (SLDRAM), a Direct Rambus RAM (DR RAM), among others. That is to say, the memory in the embodiments of the present disclosure is intended to include but is not limited to those and any other suitable types of memories.
  • SRAM Static RAM
  • DRAM Dynamic RAM
  • SDRAM Synchronous DRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced SDRAM
  • SLDRAM Synch-Link DRAM
  • DR RAM Direct Rambus RAM
  • the embodiments of the present disclosure also provide a computer-readable storage medium for storing a computer program.
  • the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program causes a computer to perform the corresponding processes which are implemented by the network device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program causes a computer to perform the corresponding processes which are implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the embodiments of the present application also provide a computer program product including computer program instructions.
  • the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause a computer to perform the corresponding processes implemented by the network device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause a computer to perform the corresponding processes which are implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the embodiments of the application also provide a computer program.
  • the computer program can be applied to the network device in the embodiments of the present application, and when running on a computer, the computer program causes the computer to perform the corresponding process implemented by the network device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the computer program can be applied to the mobile terminal/terminal device in the embodiments of the present application, and when running on a computer, the computer program causes the computer to perform the corresponding processes implemented by the mobile terminal/terminal device in the methods of the embodiments of the present application, which will not be repeated here for the sake of brevity.
  • the systems, devices, and methods disclosed in several embodiments of the present disclosure can be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the units is only a logical function division, and in actual implementations, there can be other division manners.
  • a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not implemented.
  • the coupling or direct coupling or communication connection shown or discussed herein can also be indirect coupling or communication connection through some interfaces, devices or units, and can be in electrical, mechanical or other forms.
  • the units described as separate components may be or may not be physically separated, and the components shown as units may be or may not be physical units, that is, they may be located in one place or may be distributed on multiple network units. Some or all of the units can be selected to achieve the objectives of the solutions of the embodiments according to actual requirements.
  • the functional units in the embodiments of the present disclosure can be integrated into one processing unit, or each unit can individually exist physically, or two or more of the units can be integrated into one unit.
  • the functions can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure essentially, a part thereof that contributes to the prior art, or a part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium and includes instructions which enable a computer device (which may be a personal computer, a server, a network device or the like) to perform all or part of the steps of the methods described in the embodiments of the present disclosure.
  • the foregoing storage medium includes various medium such as a USB drive, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disc that can store program codes.

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